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对马厂箐斑岩型铜矿黄铁矿中流体包裹体的氦、氩同位素研究表明,在~3He/~(36)Ar-~(40)Ar/~(36)Ar和~(40)Ar/~4He-Rc/Ra空间,流体包裹体的氦.氩同位素组成呈明显的正相关.由这种相关性确定出,成矿流体为地壳和地幔两个端元流体的混合物.其中,前者为富含地壳氦但具空气氩同位素组成特征、贫硫和碳等挥发份的大气成因低温地下水,后者为由形成马厂箐富碱斑岩体之壳慢混合岩浆分异出的富含硫和碳等挥发份的高温岩浆流体.
The study on the helium and argon isotopes of fluid inclusions in the Maichang porphyry type copper ore pyrite shows that the Ar isotopic compositions of ~ (36) Ar ~ (40) Ar ~ ~ (36) Ar and ~ (40) Ar / ~ 4He-Rc / Ra space, the fluid inclusions of helium. Argon isotope composition showed a clear positive correlation determined by this correlation, the ore-forming fluid for the crust and mantle two end-fluid mixture .Among them, The former is the low-temperature groundwater that is rich in crustal He, but possesses the characteristics of air argon isotope composition, low sulfur and carbon and other volatile components. The latter is derived from the slow mixing magma High temperature magma fluids containing volatile matter such as sulfur and carbon.